1. Pull the wiper blade and arm away from the glass and press the locking buttons together.
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  1. Rotate and remove the wiper blade.
  1. Attach the new blade to the arm and snap it into place.
Replace wiper blades at least once per year for optimum performance.
Poor wiper quality can be improved by cleaning the wiper blades and the windshield. See  Cleaning the Windows and Wiper Blades